1. ACCESSIBILITY ISSUES SIMULATION
FOR MOBILE APPLICATIONS
Jan Vystrcil
Czech Technical University in Prague
CTU in Prague AEGIS Workshop and International Conference, Brussels

2. Computer vs mobile environment
 Computer  Mobile
 Keyboard,  Touch screen,
mouse HW buttons
 Large LCD monitor  Small display
 Steady environment  Changing environment
(indoors) (outdoor)
- Artificial lightning - Sun, darkness
- Fixed position - Movements
- Planned activity - Frequent unpredictable
interruption
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3. Simulation of mobile environment in office?
 More factors should be taken into account
 Combination of factors also important
 Difficult to simulate in office environment
Hard to imagine
Simulation desired
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4. Mobile Impairment Simulation tool
 Filter
overlay window
 Independent on mobile platform
 Android
 BlackBerry
 iOS
 Symbian
 Windows 7
 …
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5. Categories of simulated issues
 Visual impairment
 Tunnel vision
 Blurred vision
 Color blindness
 Occlusion of the display
 Finger occlusion
 Reflection on the display
 Static reflections
 Display tremor
 Combined simulations
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6. Visual impairment
Blurred vision Tunnel vision Color blindness
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7. Occlusion of the display
Real world Simulation
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8. Reflection on the display
Real world Simulation
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9. Future development
 Planned effects
 Macular degeneration
 Dynamic reflections
 Simulation scenarios
 Ride on bus, walking, …
 Combined impairments
 Including parameter settings
 Integrated help for each simulation effect
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10. Conclusion
 Platform independent simulation
 Easy to use
 Integrated help
 Reference implementation
 Version for Mac OSx
 Beta version download
https://cent.felk.cvut.cz/hci/accessible/index.php?page=mis
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11. Thank you for attention
Jan Vystrcil
Czech Technical University in Prague
Faculty of Electrical Engineering
Czech Republic
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